Roof sump



Sept. 23 1924. A 1,509,305

R. c. MAHON ROOF SUMP Filed June 21 1924 @Houma Patented Sept. 23, i924-,

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RUSSELL C. MAHON, OF PARK, MICHIGAN.

ROOF SUM?.

Application led .Tune 21,` 1924. -Serial No. 721,426.

To all whom t may concern:

Be it known that I, RUssELL C. Merton', a. citizen of the United States, residing at Highland Park, in the county of `Wayne and State of liiichigan, have invented a new and useful Roof Sump, of which the following is a specification.

This invent-ion relates to sumps and more particularly to roof sumps.

lt is the object of the invention to provide a sump having a discharge connection with a suitable drain pipe and adapted to exclude foreign matter from said pipe.. and to be readily removed to facilitate cleaning either of the sump or of said pipe. y

A further object is to provide a sump comprising a catch basin having adra.in pipe leading therefrom, and a cover member for said basin rotatively seated upon the lat-ter and removably only in one position of its rotat'ion.

Still. another Objectis to seat the rotatable cover of said basin in such a manner as to secure it to some extent from rota-tion when properly positioned for use. p

YThese and various other objects are at* tained by the construction hereinafter de.- scribed and illustrated in the accompanying drawing wherein, y

Fig. l is aplan view of the improved sump showing a portion of a roof or the like, drainage of which is eiiected by said sump.

Fig. 2 is a vertical sectional view of the same, taken upon line 2 9. of Fig. l.

Fig. 3 is a sectional det-ail on line of Fig. 1.

ln these views the reference character l designates a roof or other surface to be drained, and 2 is a stand pipe through which such drainage is effected. The invention establishes the upper end of said pipe in screw-threaded connection with the bottom of a catch basin 3 which is set into the roof l and is formed with an external annular flange 3a at its top, which is arranged in a. flush relation with the roof surface to be drained. The basin 3 is provided with a cover member 4 havingy a plurality of openings 4? therein for admission of drainage fromthe roof 1. It is usual in the case of roof sumps to provide a cover member of a raised type as shown in Fig. 2, but it is to be understood that the particular shape of the cover member Will depend upon the use to which the sump is put.` Thus, if the construction were applied to a floor rather than a roof, it would be preferable to employ a substantially flat cover member. At its base the cover 4 is formed with a peripheral outstanding flange 5 adapted to seat upon a plurality of. lugs 6' integral with the basin 3 interiorly of the latter.

. To latch said cover in its position of use. the iiange 5 is formed with a plurality of radial notches 7 preferably equidistant, and the basin 3 is formed with corresponding raised lugs 8 slightly overhanging the mouth of said basin so that registration of the notches 7 with the lugs 8 is a prerequisite to lowering ofthe cover to permit its base to enter the `mouth portion of the basin 3 and engage the seating lugs 6. lhen such engagement has been established the cover may be rotatively shifted to destroy registration of the notches 7 with the lugs 8. so that a consequent removal of the cover from its position of use can be accomplished only after first rotating said cover to again register said notches and lugs.

It is desirable to provide adefinite position of use of the cover 4, in which position the notches 7 will be remote from the lugs 8` and such a position may be established by forming the seating lugs 6 of a width slightly greater than that of the .notches 7, and so locating said seating lugs that in the desired position of use of the cover said notches will register with the lugs 6 and allow the upper ends of said lugs to engage to some extent in said notches (see Figure 3) to restrain the cov-er from rotating until freed from the described engagement by slightly lifting said cover. it is preferred to positively limit rotation of the cover when shifted to its position of use by forming upon the flange 5 upstanding projections 9, which are engaged with the lugs 8 to limit further rotation of said cover when the latter has been shifted to register its notches 7 with the seating lugs.

It is a feature of the described invention that the cover 4 is very quickly and easily removable from the catch basin 3 provided it is properly manipulated for the purpose of removal, while provision is made to quite securely prevent accidental removal of said cover or its removal by unauthorized persons unfamiliar with the necessary manipulation.

The construction furthermore is exceedingly simple and adapted for manufacture at lowAv cost.

l. A sump comprising a catchy basin and a cover member therefor, a lug upon said basin overhaiiging its mouth portion, a flange upon said cover member notched for registration with said lug in engaging the cover member with thefbasin, and a seating lug upon the basin proportioned to partially engage in` said notch upon rotation of the cover member from the position of its initial' engagement with its seat.

2. A sump comprising a catch basin and a cover nieiiibe'r insertible into the mouth portion ot said, basin, a seating lug for said cover member carried by the basin in teriorly there-of, a securing lug' for lsaid cover ymember upon said basin spaced from said` seating 'lug circumferentially of the basin and overhanging the latter, said cove-r member having a peripheral notch for registration with said securing lug in initially enga-ging the cover member With its sea-t, and said notch being further engageable with said seating lug upon a rota tive actuation oi? the cover member from its ini-tial seating position to establishl a position ofuse ot said cove-r member.

3. A sump comprising a catch basin and a' cover member insertible into the mouth portion of said basin, a. seating lug for said vg v 1,509,305

cover member carried by the basin interioriy thereofj a securing lug for said cover member upon said basin' vspaced. from said seating lug cirouinferentially of the basin .and ovcrhanging :thev latter, said cover member having a, peripheral notchv for registration ivith said securing lug in vinitially i engaging the cover member With its seat,

and said notch being further eng-agreable With said seating lug upon a rotative ac-y basin overhangingV its mouth portion, av

flange upon said cover member notched for Y registration with said lug, in e-ngagingthe cover member withl the basin, and a sto-p projection upon said cover, membeig above said flange` engageable with said lug through rotation ol" the cover member when,

engaged with the basin` limiting such rota.

tion. t

lu testimony wl'iereo't` l sign ,this Yspecification. p p s RUSSELL C. liZIAlIOl. 

